Light supplement lamp and electronic equipment

Abstract

The invention discloses a light supplementing lamp and electronic equipment, and belongs to the technical field of optical devices. The light supplementing lamp comprises a light distribution part, a first light emitting source and a second light emitting source; the light distribution piece is provided with a light-out face and a light-in face which are arranged oppositely, and the light-in face comprises a first light distribution texture face and a second light distribution texture face which are arranged side by side. The first light-emitting light source is opposite to the first light distribution texture surface; the second light-emitting light source and the second light-emitting light source are oppositely arranged, and light emitted by the first light-emitting light source and the second light-emitting light source is emitted out of the light-emitting face after passing through the corresponding light distribution texture faces. Wherein the texture structures on the first light distribution texture surface and the second light distribution texture surface are different, and / or the distances between the first light-emitting light source and the corresponding light distribution texture surface and between the second light-emitting light source and the corresponding light distribution texture surface are different, so that the illuminance and the viewing angle range of light spots projected after the first light-emitting light source and the second light-emitting light source pass through the corresponding light distribution texture surfaces are different.

Description

Technical Field

[0001] The present application belongs to the technical field of optical devices, and in particular relates to a fill light and an electronic device. Background Art

[0002] As the imaging functions of electronic devices such as mobile phones continue to improve, the demand for taking photos with electronic devices is also increasing, and photo-taking scenes are emerging in an endless stream. It is difficult to take clear photos in dark environments, night scenes, and other scenes, and it is also difficult to have a good experience in video or live broadcast scenes. Therefore, electronic devices are equipped with fill lights, which can provide fill light for shooting.

[0003] However, in order to improve shooting performance, electronic devices in the related art are usually equipped with multiple cameras with different focal lengths, and the shooting ranges of cameras with different focal lengths are different. The fill light of the electronic device can only emit a single light spot with fixed brightness and irradiation range. The single light spot is difficult to meet the fill light requirements of cameras with different focal lengths, resulting in poor fill light performance of the electronic device. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a fill light and an electronic device, which can solve the technical problem of poor fill light performance of the electronic device.

[0005] In order to solve the above technical problems, this application is implemented as follows: In a first aspect, the present application discloses a fill light, comprising: A light distribution component, wherein the light distribution component has a light emitting surface and a light incident surface disposed opposite to each other, and the light incident surface includes a first light distribution texture surface and a second light distribution texture surface disposed in parallel; a first light source and a second light source, wherein the first light source is arranged opposite to the first light distribution texture surface; the second light source is arranged opposite to the second light distribution texture surface, and the light emitted by the first light source and the second light source passes through the light distribution texture surface corresponding thereto and then is emitted from the light emitting surface; Among them, the texture structures on the first light distribution texture surface and the second light distribution texture surface are different, and / or the distances between the first light source and the second light source and their corresponding light distribution texture surfaces are different, so that the illumination and viewing angle range of the light spots projected by the first light source and the second light source after passing through the corresponding light distribution texture surfaces are different.

[0006] In a second aspect, the present application discloses an electronic device, comprising a housing, a circuit board, a camera module and the above-mentioned fill light, wherein the camera module and the circuit board are both arranged on the housing, the light distribution component is arranged on the housing, and the first light source and the second light source are both arranged on the circuit board; The camera module includes a first camera and a second camera, and the first camera and the second camera are different cameras; when the first camera is in a fill light state, the first light source is turned on; when the second camera is in a fill light state, the second light source is turned on.

[0007] In an embodiment of the present application, the light incident surface of the light distribution component includes a first light distribution texture surface and a first light distribution texture surface arranged in parallel, the first light emitting light source is arranged opposite to the first light distribution texture surface, and the second light emitting light source is arranged opposite to the second light distribution texture surface. The texture structures on the first light distribution texture surface and the second light distribution texture surface are different, and / or the distances between the first light emitting light source and the second light distribution light source and their corresponding light distribution texture surfaces are different, so that the illumination and viewing angle range of the light spot projected by the first light emitting light source and the second light distribution light source after passing through the corresponding light distribution texture surfaces are different. The fill light disclosed in the present application can form a variety of different light spots, and the illumination and viewing angle range of the various different light spots are different. Therefore, the fill light in the present application can meet the fill light requirements of cameras with different focal lengths in electronic devices, thereby improving the fill light performance of electronic devices, and further enabling the electronic devices to have better shooting performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of a fill light disclosed in an embodiment of the present application; Figure 2 yes Figure 1 A partial enlarged view of the first light distribution texture surface; Figure 3 yes Figure 1 A partial enlarged view of the second light distribution texture surface; Figure 4 yes Figure 1 Schematic diagram of two types of light spots formed by the fill light projection; Figure 5 It is a structural schematic diagram of another fill light disclosed in an embodiment of the present application; Figure 6 yes Figure 5 A partial enlarged view of the second light distribution texture surface; Figure 7 yes Figure 5 Schematic diagram of two types of light spots formed by the fill light projection; Figure 8 yes Figure 5 Schematic diagram of a new light spot formed by the fusion of two light spots projected by the fill light in FIG. Fig. 9 It is a structural schematic diagram of a light distribution component of a fill light disclosed in an embodiment of the present application; Fig.10 yes Fig. 9 A partial enlarged view of Fig.11 It is a structural schematic diagram of another light distribution component of a fill light disclosed in an embodiment of the present application; Fig.12 yes Fig.11 A partial enlarged view of Fig.13 It is a structural schematic diagram of a light distribution component of a third fill light disclosed in an embodiment of the present application; Fig.14 yes Fig.13 A partial enlarged view of Fig.15 It is a structural schematic diagram of an electronic device disclosed in an embodiment of the present application; Fig.16 It is a cross-sectional view of an electronic device disclosed in an embodiment of the present application.

[0009] Description of reference numerals: 100-fill light, 110-light distribution component, 111-light emitting surface, 112-light incident surface, 1121-first light distribution texture surface, 1122-second light distribution texture surface, 11201-first light incident structure, 11202-second light incident structure, 11202a-ring teeth, 1123-sensor photosensing area, 1123a-light control texture, 114-partition area, 1141-first area, 1142-second area, 121-first light source, 122-second light source, 130-spectral sensor, 200-housing, 210-light-transmitting area, 300-circuit board, 400-camera module. DETAILED DESCRIPTION

[0010] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0011] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the objects associated with each other are in an "or" relationship.

[0012] The fill light and the electronic device provided in the embodiments of the present application are described in detail below through specific embodiments and their application scenarios in combination with the accompanying drawings.

[0013] Please refer to Figures 1 to 14 The embodiment of the present application discloses a fill light 100 , which is applied to an electronic device. The disclosed fill light 100 includes a light distribution component 110 , a first light source 121 , and a second light source 122 .

[0014] The light distribution component 110 has a light emitting surface 111 and a light incident surface 112 which are arranged opposite to each other. The light incident surface 112 includes a first light distribution texture surface 1121 and a second light distribution texture surface 1122 which are arranged in parallel. The first light source 121 is arranged opposite to the first light distribution texture surface 1121, and the second light source 122 is arranged opposite to the second light distribution texture surface 1122. The light emitted by the first light source 121 and the second light source 122 passes through the light distribution texture surfaces corresponding thereto and then is emitted from the light emitting surface 111. The material of the light distribution component 110 can be PC (Polycarbonate), and of course it can also be other materials, which are not limited in this article.

[0015] During the working process of the fill light 100, when the first light source 121 is turned on, the light emitted by the first light source 121 is distributed by the first light distribution texture surface 1121 and then emitted from the light exit surface 111. When the second light source 122 is turned on, the light emitted by the second light source 122 is distributed by the second light distribution texture surface 1122 and then emitted from the light exit surface 111. Here, the light emitted by the first light source 121 and the light emitted by the second light source 122 can be emitted through the same area of ​​the light exit surface 111. Alternatively, the light exit surface 111 has a first light exit area and a second light exit area arranged in parallel, the first light exit area is arranged opposite to the first light distribution texture surface 1121, and the light emitted by the first light source 121 is distributed by the first light distribution texture surface 1121 and then emitted from the first light exit area. The second light emitting area is arranged opposite to the second light distribution texture surface 1122 . The light emitted by the second light source 122 is distributed by the second light distribution texture surface 1122 and then emitted from the second light emitting area.

[0016] In the embodiments disclosed in the present application, the texture structures on the first light distribution texture surface 1121 and the second light distribution texture surface 1122 are different. At this time, since the texture structures of the two light distribution textures are different from each other, the illumination and viewing angle range of the light spot projected by the first light emitting light source 121 and the second light emitting light source 122 after passing through the corresponding light distribution texture surface are also different. The viewing angle range of the light spot here refers to the range in which the projected light spot can be illuminated, and the illumination of the light spot refers to the brightness of the formed light spot. For example, when the first light distribution texture surface 1121 has a smaller contraction angle of the light emitted by the first light source 121, the radiation angle of the light from the first light source 121 after passing through the first light distribution texture surface 1121 is larger, so the viewing angle range of the projected light spot is larger and the illumination of the light spot is smaller. As the viewing angle range of the light spot increases, its brightness will decrease. When the second light distribution texture surface 1122 shrinks the angle of the light emitted by the second light source 122 to a large extent, the radiation angle of the light from the second light source 122 after passing through the second light distribution texture surface 1122 is small, so the viewing angle range of the projected light spot is small, the light is more concentrated, and therefore the illumination of the light spot is large. At this time, the viewing angle range of the light spot becomes smaller, and the brightness of the light spot is larger. Since the viewing angle range of the light spot transmitted by the first light source 121 through the first light distribution texture surface 1121 is large, the range that can be illuminated is wider, so the light spot transmitted by the first light source 121 through the first light distribution texture surface 1121 can fill in the light for the camera with a larger focal length of the shooting field of view, such as a wide-angle camera. The viewing angle range of the light spot transmitted by the second light source 122 through the second light distribution texture surface 1122 is small, but the brightness is higher, so the irradiation distance is farther. Therefore, the light spot transmitted by the second light source 122 through the second light distribution texture surface 1122 can fill in the light for the camera with a smaller focal length of the shooting field of view, such as a telephoto camera.

[0017] Of course, the embodiments disclosed in the present application are not limited to the first light distribution texture surface 1121 and the second light distribution texture surface 1122 having different texture structures. It is also possible that the distances between the first light emitting light source 121 and the second light emitting light source 122 and their corresponding light distribution texture surfaces are different. For example, when the first light distribution texture surface 1121 and the second light distribution texture surface 1122 have the same structure, the distance between the first light distribution texture surface 1121 and the first light emitting light source 121 is smaller than the distance between the second light distribution texture surface 1122 and the second light emitting light source 122, and the distance between the first light distribution texture surface 1121 and the first light distribution light source 121 is closer, so the viewing angle range of the light spot transmitted by the first light distribution texture surface 1121 is larger. The distance between the second light distribution texture surface 1122 and the second light distribution light source 122 is farther, so the viewing angle range of the light spot transmitted by the second light distribution texture surface 1122 from the second light distribution texture surface 1122 is smaller.

[0018] In another embodiment, the texture structures on the first light distribution texture surface 1121 and the second light distribution texture surface 1122 are different, and the distances between the first light source 121 and the second light source 122 and their corresponding light distribution texture surfaces are different. In this case, the difference in light spots can be increased by the difference in distance and texture structure.

[0019] In the embodiments disclosed in the present application, the fill light 100 can form a variety of different light spots, and the illumination and viewing angle ranges of the various different light spots are different. Therefore, the fill light 100 in the present application can meet the fill light requirements of cameras with different focal lengths in electronic devices, thereby improving the fill light performance of electronic devices, and further enabling the electronic devices to have better shooting performance.

[0020] In addition, the fill light 100 disclosed in the present application can realize fill light at various focal lengths without increasing the number of fill lights 100 and the number of light-transmitting areas 210 on the electronic device. Therefore, in terms of appearance, the electronic device still has only one fill light 100, thereby improving the appearance performance of the electronic device. At the same time, since the number of openings of the electronic device is relatively small, it is also beneficial to improve the waterproof and dustproof performance of the electronic device.

[0021] In addition, the present application can achieve different fill light spots by having different texture structures of the light distribution texture surface and / or different distances between the light distribution texture surface and its corresponding light source, so the optical structure is simple and the cost is low.

[0022] In the above scheme, the texture structure of the first light distribution texture surface 1121 and the second light distribution texture surface 1122 can be an arc-shaped convex surface, or a plurality of tooth-shaped structures arranged in sequence. Of course, the texture structure on the first light distribution texture surface 1121 and the second light distribution texture surface 1122 can also be other structures, which are not limited in this article. The above-mentioned first light distribution texture surface 1121 and the second light distribution texture surface 1122 can both be arc-shaped convex surfaces, in which case the curvature or radius of the two arc-shaped convex surfaces is different, so that the radiation angles of the two light distribution texture surfaces to the light are different. Alternatively, the first light distribution texture surface 1121 and the second light distribution texture surface 1122 can both include a plurality of tooth-shaped structures, in which case the tooth width, tooth height and swing angle of the tooth-shaped structure on the first light distribution texture surface 1121 are different from at least one of the tooth width, tooth height and swing angle of the tooth-shaped structure on the second light distribution texture surface 1122, so that the radiation angles of the two light distribution texture surfaces to the light are different.

[0023] In another optional embodiment, the first light distribution texture surface 1121 may be rotationally symmetric about the central optical axis of the first light emitting source 121. The central optical axis of the first light emitting source 121 here refers to the optical axis at the center position of the first light emitting source 121 or the physical center line of the first light emitting source 121. Figure 1 and Figure 5The second light distribution texture surface 1122 may be rotationally symmetrical about the central optical axis of the second light source 122. The central optical axis of the second light source 122 here refers to the optical axis at the center of the second light source 122 or the physical center line of the second light source 122. Figure 1 and Figure 5 As shown in O2.

[0024] The first light distribution texture surface 1121 and the second light distribution texture surface 1122 may include a first light incident structure 11201 and a second light incident structure 11202. The second light incident structure 11202 may be arranged around the first light incident structure 11201. The first light incident structure 11201 is an arc-shaped convex surface. The second light incident structure 11202 may include a plurality of annular teeth 11202a, and the plurality of annular teeth 11202a are continuously arranged in a direction away from the first light incident structure 11201. Here, the plurality of annular teeth 11202a are continuously arranged in a direction away from the first light incident structure 11201, which refers to the direction from the center of the first light distribution texture surface 1121 or the second light distribution texture surface 1122 to its edge.

[0025] Specifically, the first light incident structure 11201 is an arc-shaped convex surface, and the arc-shaped convex surface protrudes toward one side of the corresponding first light source 121 or the second light source 122. At this time, the first angle light of the first light source 121 or the second light source 122 is emitted from the light emitting surface 111 after passing through the first light incident structure 11201. The arc-shaped convex surface has a more precise light angle contraction effect on light diverging at a small angle. Therefore, by setting the first light incident structure 11201 as an arc-shaped convex surface, the small angle light can be better contracted.

[0026] When the divergence angle of the light from the first light source 121 or the second light source 122 is further expanded, the control accuracy of the arc convex surface will deteriorate, making it difficult to shrink or diffuse the light. At this time, the second angle light from the first light source 121 or the second light source 122 is emitted from the light exit surface 111 after passing through the second light input structure 11202. Since each annular tooth 11202a has two opposite side walls, the light first enters through one of the side walls, and the side wall can refract the incident light, and the refracted light can be reflected by the other side wall. Therefore, through one refraction and one reflection, the light can be better diverged or shrunk, thereby further improving the control accuracy of the light.

[0027] In this solution, the first light distribution texture surface 1121 and the second light distribution texture surface 1122 each have two light distribution areas, and each light distribution area adopts a different light distribution structure for light at different angles, which can help improve the light distribution accuracy of each light distribution texture surface and further improve the fill light performance of the fill light 100.

[0028] In the above solution, the first light incident structure 11201 on the first light distribution texture surface 1121 and the second light distribution texture surface 1122 are different. Alternatively, the second light incident structure 11202 on the first light distribution texture surface 1121 and the second light distribution texture surface 1122 are different. Alternatively, the first light incident structure 11201 and the second light incident structure 11202 on the first light distribution texture surface 1121 and the second light distribution texture surface 1122 are both different.

[0029] In another optional solution, at least one of the tooth width, tooth height and swing angle of the annular teeth 11202a on the first light distribution texture surface 1121 and the second light distribution texture surface 1122 is different. The tooth height here refers to the distance between the tooth root and the tooth top of each annular tooth 11202a. Figure 2 h1 in the figure is the tooth height of the annular tooth 11202a on the first light distribution texture surface 1121. Figure 3 h2 in is the tooth height of the annular tooth 11202a on the second light distribution texture surface 1122. The tooth width refers to the width of each annular tooth 11202a, that is, the distance between the tooth roots or tooth bottoms on opposite sides of each annular tooth 11202a. Figure 2 Where w1 is the tooth width of the annular tooth 11202a on the first light distribution texture surface 1121. Figure 3 The w2 in the figure is the tooth width of the annular tooth 11202a on the second light distribution texture surface 1122. The swing angle refers to the tilt angle of the annular tooth 11202a, and the tilt angle here can be represented by one of the side surfaces of the annular tooth 11202a. Alternatively, the tilt angle of each annular tooth 11202a can be represented by the tilt angle of the line connecting the midpoint between the tooth roots on both sides of each annular tooth 11202a and the tooth top. Figure 2 As shown, a1 is the line connecting the midpoint between the tooth roots on both sides of the annular tooth 11202a on the first light distribution texture surface 1121 and the tooth top. Figure 3As shown, a2 is the line connecting the midpoint between the tooth roots on both sides of the annular tooth 11202a on the second light distribution texture surface 1122 and the tooth top. In one solution, the light incident surface 112 can be used as a reference surface, and the inclination angle of a1 relative to the light incident surface 112 is the swing angle of the annular tooth 11202a on the first light distribution texture surface 1121. The inclination angle of a2 relative to the light incident surface 112 is the swing angle of the annular tooth 11202a on the second light distribution texture surface 1122. Alternatively, in another solution, since the central optical axis of the first light source 121 is parallel to the central optical axis of the second light source 122, the inclination angle of a1 relative to the central optical axis of the first light source 121 is the swing angle of the annular tooth 11202a on the first light distribution texture surface 1121. Similarly, the inclination angle of a2 relative to the central optical axis of the second light source 122 is the swing angle of the annular tooth 11202a on the second light distribution texture surface 1122. The swing angle in the present application can be characterized by the inclination angles of a1 and a2 relative to the light incident surface 112 .

[0030] In an optional embodiment, the first light incident structure 11201 on the first light distribution texture surface 1121 and the second light distribution texture surface 1122 is the same, which means that the surface shape and size of the first light incident structure 11201 on the two light distribution texture surfaces are the same. The tooth width and tooth height of the annular teeth 11202a on the first light distribution texture surface 1121 are the same as the tooth width and tooth height of the annular teeth 11202a on the second light distribution texture surface 1122. The swing angle of the annular teeth 11202a on the first light distribution texture surface 1121 is greater than the swing angle of the annular teeth 11202a on the second light distribution texture surface 1122. In this solution, the illumination and viewing angle range of the light spot are different by adjusting the swing angle of the annular teeth 11202a on the first light distribution texture surface 1121 and the second light distribution texture surface 1122. This solution has a simple structure and is easy to manufacture.

[0031] In the above solution, the annular teeth 11202a on the first light distribution texture surface 1121 and the annular teeth 11202a on the second first light distribution texture surface 1121 are different only in the swing angle. In other words, the tooth height, tooth width and swing angle of all the annular teeth 11202a on the first light distribution texture surface 1121 are the same. The tooth height, tooth width and swing angle of all the annular teeth 11202a on the second light distribution texture surface 1122 are the same.

[0032] In such Figure 1 In the scheme shown, the annular teeth 11202a on the first light distribution texture surface 1121 and the annular teeth 11202a on the second first light distribution texture surface 1121 have different swing angles. The tooth height, tooth width and swing angle of all the annular teeth 11202a on the first light distribution texture surface 1121 are the same. The tooth height, tooth width and swing angle of all the annular teeth 11202a on the second light distribution texture surface 1122 are the same. In a specific scheme, Figure 1 Specific data of the fill light 100 are shown in Table 1 below.

[0033] Table 1

[0034] Here, the distance from the light distribution texture to the corresponding light source can be understood as the distance between the highest point of the first light incident structure 11201 and the light emitting surface of the corresponding light source. Figure 1 Where g1 is the distance between the first light distribution texture surface 1121 and the first light source 121, and g2 is the distance between the second light distribution texture surface 1122 and the second light source 122. Figure 5 Here, g3 is the distance between the first light distribution texture surface 1121 and the first light source 121, and g4 is the distance between the second light distribution texture surface 1122 and the second light source 122. Of course, the tooth width and tooth height of the annular teeth 11202a of the first light distribution texture surface 1121 and the second light distribution surface can float between plus or minus 0.05 mm. The swing angle can float between plus or minus 15 degrees. The distance from the light distribution texture to the corresponding light source can float between plus or minus 0.2 mm. This article only records the structure of a specific light distribution texture. Of course, the textures on the first light distribution texture surface 1121 and the second light distribution texture surface 1122 can also be other size values, which are not limited in this article.

[0035] In another scheme, if Figure 5 As shown, the diameter of the contour of the orthographic projection of the first light incident structure 11201 on the first light distribution texture surface 1121 is smaller than the diameter of the contour of the orthographic projection of the first light incident structure 11201 on the second light distribution texture surface 1122. In the radial direction along the second light distribution texture surface 1122, the distance between the tooth top of the annular tooth 11202a of the second light distribution texture surface 1122 and the light exit surface 111 gradually increases. The radial direction of the second light distribution texture surface 1122 here refers to the direction extending from the center of the second light distribution texture surface 1122 to its edge.

[0036] In this solution, the diameter of the contour of the orthographic projection of the arc-shaped convex surface on the first light distribution texture surface 1121 is smaller than the diameter of the contour of the orthographic projection of the arc-shaped convex surface on the second light distribution texture surface 1122, so that the light entrance diameter of the arc-shaped convex surface on the second light distribution texture surface 1122 is larger, so that the arc-shaped convex surface on the second light distribution texture surface 1122 can collimate more light, so that the central brightness of the light spot transmitted by the second light distribution texture surface 1122 can be further improved, and then the illumination of the light spot can be further improved. In addition, the light-emitting surface 111 is used as a reference surface, so the distance between the tooth top of the annular tooth 11202a on the second light-distributing texture surface 1122 and the light-distributing surface 111 gradually increases, which can be understood as the tooth top of the outer annular tooth 11202a protruding from the tooth top of the inner annular tooth 11202a, thereby avoiding the outer annular tooth 11202a from being blocked by the inner annular tooth 11202a, thereby further improving the utilization rate of light, which is conducive to further improving the brightness of the transmitted light spot. Therefore, through the above structure, the second light-distributing texture surface 1122 can transmit a light spot with a small fill-in range and extremely high illumination at the center of the light spot, thereby meeting the fill-in demand of the telephoto camera.

[0037] like Figure 6 As shown, w3 is the width of the arc-shaped convex surface on the second light distribution texture surface 1122, and can also be understood as the diameter of the contour of the positive projection of the arc-shaped convex surface. Figure 1 The arc-shaped convex surface of the first light distribution texture surface 1121 and the arc-shaped convex surface of the second light distribution texture surface 1122 and Figure 6 The width of the arc-shaped convex surface of the first light distribution texture surface 1121 can be 0.3 mm. The size of w3 can be 0.5916 mm. Of course, the size of w3 can float between plus or minus 0.2 mm.

[0038] In one solution, the tooth height, tooth width and swing angle of all the annular teeth 11202a on the second light distribution texture surface 1122 may be the same. In this case, the position of each annular tooth 11202a along the central optical axis of the second light source 122 may be adjusted so that the distance between the tooth top of the annular tooth 11202a of the second light distribution texture surface 1122 and the light emitting surface 111 gradually increases.

[0039] In another optional embodiment, the tooth width and tooth height of any annular tooth 11202a on the second light distribution texture surface 1122 are greater than the tooth width and tooth height of any annular tooth 11202a on the first light distribution texture surface 1121. In this solution, the tooth width and tooth height of any annular tooth 11202a on the second light distribution texture surface 1122 are larger, so the light contraction performance is further improved, which is conducive to further reducing the range of the light spot and improving the brightness of the light spot.

[0040] Alternatively, if Figure 6 As shown, the tooth width and tooth height of the annular tooth 11202a of the first light distribution texture surface 1121 can be about 0.15 mm, while the tooth width and tooth height of the annular tooth 11202a of the second light distribution texture surface 1122 can be between 0.3 mm and 0.4 mm. Therefore, the tooth width and tooth height of the annular tooth 11202a of the second light distribution texture surface 1122 can be twice the tooth width and tooth height of the annular tooth 11202a of the first light distribution texture surface 1121.

[0041] In another optional solution, the tooth width, tooth height and swing angle between any adjacent annular teeth 11202a on the second light distribution texture surface 1122 are different. In other words, each annular tooth 11202a on the second light distribution texture surface 1122 is different. In this solution, by individually designing the tooth shape of the annular tooth 11202a at each position on the second light distribution texture surface 1122, the light at each position can be precisely controlled, which is conducive to further reducing the range of the light spot and improving the brightness of the light spot, achieving an ultra-high brightness extreme light spot effect.

[0042] In one specific embodiment, Figure 6 Specific data of the second light distribution texture surface 1122 are shown in Table 2 below.

[0043] Table 2

[0044] The above-mentioned point O is the origin of the coordinate system. The point O can be the highest point of the arc-shaped convex surface of the second light distribution texture surface 1122, and can also be understood as the intersection of the central optical axis of the second light emitting light source 122 and the arc-shaped convex surface. The above-mentioned A, C, E, G, I, K and M are the coordinates of the tooth root or tooth bottom of each annular tooth 11202a of the second light distribution texture surface 1122, and B, D, F, H, J, L and N are the coordinates of the tooth top of each annular tooth 11202a of the second light distribution texture surface 1122. Through the coordinates of the tooth top and tooth root of each annular tooth 11202a, a continuous tooth line can be obtained. The tooth line rotates around the central optical axis of the second light emitting light source 122 for one circle, and the second light incident structure 11202 in this application can be obtained. The above-mentioned coordinates can float between plus or minus 0.05mm.

[0045] In another optional solution, the light incident surface 112 may further include a sensor photosensitive area 1123, which may be located between the first light distribution texture surface 1121 and the second light distribution texture surface 1122. The fill light 100 may further include a spectral sensor 130, which is disposed opposite to the sensor photosensitive area 1123.

[0046] In the specific operation process, the external ambient light enters the light distribution component 110 through the light emitting surface 111, and then passes through the sensor photosensitive area 1123 and is received by the spectrum sensor 130. The spectrum sensor is responsible for receiving the external ambient light, and the spectrum sensor 130 is responsible for receiving the external ambient light and sensing the external spectrum information, thereby improving the color expression of the photo.

[0047] This solution can be beneficial to further improve the shooting performance of the electronic device. In addition, due to the different texture structures on the first light distribution texture surface 1121 and the second light distribution texture surface 1122, the seams at the boundaries of the texture areas cannot be symmetrical. This phenomenon has no effect on the optical performance, but it will cause strong reflections or burrs in the seam area in visual perception, thereby reducing the appearance performance of the fill light 100. The sensor photosensitive area 1123 is located between the first light distribution texture surface 1121 and the second light distribution texture surface 1122, thereby separating the first light distribution texture surface 1121 and the second light distribution texture surface 1122. When the sensor photosensitive area 1123 is not provided with a texture, that is, when the sensor photosensitive area 1123 is a plane, a plane area is provided at the junction of the textures in different areas, thereby solving the strong reflections or burrs in visual perception, thereby improving the appearance performance of the fill light 100.

[0048] In the above solution, the specific structure and working principle of the spectral sensor 130 are not limited herein.

[0049] In the embodiment disclosed in the present application, the first light distribution texture surface 1121, the second light distribution texture surface 1122 and the sensor light-sensitive area 1123 can share the same area of ​​the light-emitting surface 111. Alternatively, the light-emitting surface 111 has a first light-emitting area, a second light-emitting area and a third light-emitting area, the first light-emitting area is arranged opposite to the first light distribution texture surface 1121, the second light-emitting area is arranged opposite to the second light distribution texture surface 1122, and the third light-emitting area is arranged opposite to the sensor light-sensitive area 1123.

[0050] However, in order to allow more external light to enter the sensor photosensitive area 1123 of the spectrum sensor 130, a light control texture 1123a is usually provided, for example, Fig. 9 As shown, a tooth-shaped light control texture 1123a is provided on the sensor photosensitive area 1123, so as to meet the light distribution requirements of the spectrum sensor 130. At this time, the sensor photosensitive area 1123 is no longer a planar structure, such as Fig.10As shown, the seam at the boundary of the texture area between the light-controlling texture 1123a on the sensor photosensitive area 1123 and the first light distribution texture surface 1121 and the second light distribution texture surface 1122 cannot be symmetrical on the left and right, so the seam area will be strongly reflected or have a burr-like visual effect, thereby reducing the appearance performance of the fill light 100.

[0051] Based on this, in another optional solution, such as Fig.11 and Fig.13 As shown, a separation area 114 is provided at the joint of the sensor photosensitive area 1123 and the adjacent light distribution texture surface, and the separation area 114 is used to separate the light control texture 1123a on the sensor photosensitive area 1123 from the texture structure on the adjacent light distribution texture surface. In this solution, a narrow area is provided at the junction of the textures in different areas, and the area can separate the two spliced ​​textures, thereby solving the visual strong reflection or burr feeling, and thus is conducive to improving the appearance performance of the fill light 100.

[0052] In the above scheme, a rectangular plane can be set between the joint of the sensor photosensitive area 1123 and its adjacent light distribution texture surface. It can also be understood that when the first light distribution texture surface 1121, the second light distribution texture surface 1122 and the sensor photosensitive area 1123 are set, a certain distance is separated between the first light distribution texture surface 1121 and the sensor photosensitive area 1123 to form a plane. The second light distribution texture surface 1122 and the sensor photosensitive area 1123 are separated by a certain distance to form a plane. Alternatively, a first area 1141 is set at the edge of the sensor photosensitive area 1123, and a second area 1142 is set at the edge of the light distribution texture surface adjacent to the sensor photosensitive area 1123. The first area 1141 and the second area 1142 are spliced ​​to form the separation area 114. It can be understood here that the first area 1141 is an area reserved at the edge of the sensor photosensitive area 1123 where no texture is set. Similarly, the second area 1142 is an area reserved at the edge of the first light distribution texture surface 1121 or the second light distribution texture surface 1122 where no texture is set. Fig.11 and Fig.12 As shown, the first area 1141 and the second area 1142 are planar areas. The width indicated by b1 is the width of the separation area 114 formed by the first area 1141 and the second area 1142. The width range of b1 can be greater than 0 and less than or equal to 0.5 mm. Preferably, the width of b1 can be 0.1 mm.

[0053] Alternatively, the first area 1141 is the area after the edge of the sensor photosensitive area 1123 is atomized, that is, the entire area of ​​the sensor photosensitive area 1123 is provided with the light control texture 1123a, but a certain width area of ​​the edge of the sensor photosensitive area 1123 is atomized to reduce its light transmittance, thereby reducing the visual strong reflection or burr feeling. Similarly, the second area 1142 is the atomized area of ​​the edge of the first light distribution texture surface 1121 or the second light distribution texture surface 1122. Fig.13 and Fig.14 As shown, the first area 1141 and the second area 1142 are atomized areas. The atomization effect can be formed by laser, etching and other processes. The width shown by b2 is the width of the separation area 114 formed by the first area 1141 and the second area 1142. The width range of b2 can be greater than 0 and less than or equal to 0.5mm. Preferably, the width of b2 can be 0.15mm.

[0054] In another optional solution, the first area 1141 and the second area 1142 can be symmetrically arranged about the splicing edge line of the sensor photosensitive area 1123 and the light distribution texture surface adjacent to the sensor photosensitive area 1123. The splicing edge line here refers to the edge line formed by the position where the sensor photosensitive area 1123 and the light distribution texture surface adjacent to the sensor photosensitive area 1123 contact each other. In this solution, the first area 1141 and the second area 1142 are symmetrically arranged about the splicing edge line, so as to have a better visual effect, thereby further improving the appearance performance of the fill light.

[0055] Optionally, in Fig.11 In the embodiment shown, the width of the first region 1141 and the second region 1142 can both be 0.05 mm. Fig.13 In the illustrated embodiment, the width of the first region 1141 and the width of the second region 1142 may both be 0.075 mm.

[0056] Based on the fill light 100 disclosed in the embodiment of the present application, the embodiment of the present application further discloses an electronic device, and the disclosed electronic device includes the fill light 100 described in any of the above embodiments.

[0057] like Fig.15 and Fig.16As shown, the electronic device disclosed in the present application may also include a housing 200, a circuit board 300 and a camera module 400. The housing 200 provides an installation base for other components of the electronic device. The camera module 400 and the circuit board 300 are both arranged on the housing 200. The above-mentioned fill light 100 can be located in the accommodation space of the housing 200. The housing 200 is provided with a light-transmitting area 210, and the light-transmitting area 210 here can be a light-transmitting hole or a solid area that can transmit light. The light-emitting surface 111 of the light distribution component 110 can be arranged opposite to the light-transmitting area 210. The circuit board 300 here can be a main board of the electronic device, or a sub-board of the electronic device. The first light source 121 and the second light source 122 can be both arranged on the circuit board 300, and the circuit board 300 supplies power to the light source of the fill light 100, and controls the opening and closing of the light source. In addition, the spectral sensor 130 in the above scheme can also be electrically connected to the circuit board 300.

[0058] In the above solution, the camera module 400 may be a camera that can adjust the focal length of multiple focal lengths. At this time, the first light source 121 or the second light source 122 may be selected to be turned on according to different focal lengths.

[0059] In another embodiment, the camera module 400 may include a first camera and a second camera, and the first camera and the second camera are different cameras. When the first camera is in the fill light state, the first light source 121 is turned on, and the light spot formed by the first light distribution texture surface 1121 through the first light source 121 is used to fill light for the first camera. Figure 4 The A1 spot and Figure 7 When the second camera is in the fill light state, the second light source 122 is turned on, and the light spot formed by the second light distribution texture surface 1122 of the second light source 122 is used to fill light for the second camera. Figure 4 The A2 spot and Figure 7 A4 spot in the image.

[0060] In the embodiments disclosed in the present application, the fill light 100 can form a variety of different light spots, and the illumination and viewing angle ranges of the various different light spots are different. Therefore, the fill light 100 in the present application can meet the fill light requirements of cameras with different focal lengths in electronic devices, thereby improving the fill light performance of electronic devices, and further enabling the electronic devices to have better shooting performance.

[0061] In another optional solution, the first camera can be a wide-angle camera, which has a wide shooting range but a short shooting distance, so the fill light 100 is required to project a light spot with a larger range and lower illumination. The second camera can be a main camera, which has a moderate shooting range and a moderate shooting distance, so the fill light 100 is required to project a light spot with a moderate range and moderate illumination.

[0062] The viewing angle range generated by the first light source 121 through the first light distribution texture surface 1121 is greater than the viewing angle range generated by the second light source 122 through the second light distribution texture surface 1122. At this time, since the viewing angle range of the light spot projected by the first light source 121 through the first light distribution texture surface 1121 is greater than the viewing angle range of the light spot projected by the second light source 122 through the second light distribution texture surface 1122, the illumination of the light spot projected by the first light source 121 through the first light distribution texture surface 1121 is less than the illumination of the light spot projected by the second light source 122 through the second light distribution texture surface 1122. Therefore, the illumination of the light spot projected by the first light source 121 through the first light distribution texture surface 1121 is small, but the illumination range is large. The illumination of the light spot projected by the second light source 122 through the second light distribution texture surface 1122 is large, but the illumination range is small. Therefore, the light spot projected by the first light source 121 through the first light distribution texture surface 1121 can meet the fill light requirement of the wide-angle camera, and the light spot projected by the second light source 122 through the second light distribution texture surface 1122 can meet the fill light requirement of the main camera.

[0063] This solution can meet the fill light requirements of wide-angle cameras and main cameras, thereby helping to improve the shooting performance of electronic devices.

[0064] In a specific solution, when the fill light 100 needs to fill light for the wide-angle camera and the main camera, the fill light 100 can be used as follows: Figure 1 The structure shown. At this time, the first light-incoming structure 11201 on the first light-distributing texture surface 1121 and the second light-distributing texture surface 1122 are the same, and the tooth width and tooth height of the annular teeth 11202a on the first light-distributing texture surface 1121 are the same as the tooth width and tooth height of the annular teeth 11202a on the second light-distributing texture surface 1122. The swing angle of the annular teeth 11202a on the first light-distributing texture surface 1121 is greater than the swing angle of the annular teeth 11202a on the second light-distributing texture surface 1122. The specific size data of the fill light 100 can adopt the data in Table 1 above. Figure 4 As shown, Figure 4 It is a light energy illumination distribution diagram of the light spots projected by the first light source 121 and the second light source 122 when driven by the same current on a projection plane at a distance of 1000mm. The size of the distribution diagram is 1006mm*1342mm (the diagonal length is 80° angular range).

[0065] like Figure 4 As shown, after the light projected by the first light source 121 is modulated by the first light distribution texture surface 1121, an A1 light spot is formed. The viewing angle range of the A1 light spot is large, and it can well fill the entire 1006mm*1342mm (diagonal length is 80° angle range) area, and the illumination at the center exceeds 40lux, which well matches the shooting requirements of the wide-angle camera. After the light projected by the second light source 122 is modulated by the second light distribution texture surface 1122, an A2 light spot is formed. The viewing angle range of the A2 light spot is moderate, and it can well fill the entire 560mm*746mm (diagonal length is 50° angle range, black frame area) area, and the illumination at the center exceeds 70lux, which well matches the shooting requirements of the main camera. Therefore, when the wide-angle camera is in the fill light state, turning on the first light source 121 can achieve good fill light; when the main camera is in the fill light state, turning on the second light source 122 can achieve good fill light.

[0066] In one solution, the first camera may be a wide-angle camera, and the second camera may be a telephoto camera. The telephoto camera has a small shooting range and a long shooting distance, so a flash lamp is required to project a light spot with a smaller range and higher illumination. Figure 5 As shown, the texture structure of the first light distribution texture surface 1121 can be Figure 1 The texture structure in the scheme is the same, so when the wide-angle camera is in the fill light state, turning on the first light source 121 can achieve good fill light. The second light distribution texture surface 1122 needs to be redesigned, and its structure is as follows Figure 6 As shown, the specific size data can adopt the data in Table 2 above.

[0067] like Figure 7 It is a light energy illumination distribution diagram of the light spots projected by the first light source 121 and the second light source 122 when they are driven with the same current on a projection plane at a distance of 1000mm. The size of the distribution diagram is 1006mm*1342mm (the diagonal length is 80° angular range).

[0068] The light projected by the first light source 121 is modulated by the first light distribution texture surface 1121 to form an A3 light spot. Figure 1 and Figure 5 When the current in the scheme is the same, the A3 spot is the same as the A1 spot, and the A1 spot matches the shooting requirements of the wide-angle camera.

[0069] The light projected by the second light source 122 is modulated by the second light distribution texture surface 1122 to form an A4 light spot. The A4 light spot has a small fill light range and high central illumination, which can well fill the entire 320mm*428mm (diagonal length is 30° angle range, black frame area) area, and the illumination at the center reaches 119lux, which basically matches the shooting requirements of the telephoto camera. Therefore, when the wide-angle camera is in the fill light state, turning on the first light source 121 can achieve good fill light. When the telephoto camera is in the fill light state, turning on the second light source 122 during operation can achieve good fill light.

[0070] Above Figure 1 and Figure 5 In the two solutions, in addition to the different structures of the second light distribution texture surface 1122, the distance between the second light source 122 and the second light distribution texture surface 1122 may also be different. Figure 1 and Figure 5 The structures of the first light distribution texture surface 1121 in the two solutions are the same, so g1 and g3 can be the same. Figure 1 and Figure 5 In both solutions, g4 needs to be larger than g2, and g2 needs to be larger than g1 and g3.

[0071] In another optional solution, the camera module 400 may also include a third camera. When the third camera is in the fill light state, the first light source 121 and the second light source 122 may be turned on at the same time, and the viewing angle range generated by the first light source 121 through the first light distribution texture surface 1121 overlaps with the viewing angle range generated by the second light source 122 through the second light distribution texture surface 1122. In other words, the light spot formed by the first light source 121 through the first light distribution texture surface 1121 and the light spot formed by the second light source 122 through the second light distribution texture surface 1122 are superimposed to form a new light spot. This light spot may have the viewing angle range of the light spot formed by the first light source 121 through the first light distribution texture surface 1121 and the brightness of the light spot formed by the second light source 122 through the second light distribution texture surface 1122.

[0072] For example, when the first light source 121 and the second light source 122 can be turned on at the same time and have the same current, the light spot formed by the fill light 100 has a larger fill light range and a stronger light intensity. Optionally, the current of the first light source 121 and the second light source 122 can both be 500mA.

[0073] In a specific solution, the specific structure of the fill light 100 can be as follows: Figure 5As shown, at this time, when the first light source 121 and the second light source 122 work at the same time, and the driving current of the first light source 121 and the second light source 122 is less than the current when they are lit separately. At this time, the viewing angle range and illumination of the light spot formed by the first light source 121 and the second light source 122 when they are lit simultaneously are both less than the viewing angle range and illumination of the light spot formed when the first light source 121 and the second light source 122 are lit separately. Therefore, the illumination and viewing angle range of the light spot formed by their superposition are both between the light spots formed by their separate lighting, so they can be used for fill light of the main camera.

[0074] Specifically, when the fill light 100 is in the first working state, the first light source 121 is turned on, the second light source 122 is turned off, and the first light source 121 is projected through the first light distribution texture surface 1121 to form a first light spot; when the fill light 100 is in the second working state, the second light source 122 is turned on, the first light source 121 is turned off, and the second light source 122 is projected through the second light distribution texture surface 1122 to form a second light spot; when the fill light 100 is in the third working state, such as Figure 8 As shown, the first light source 121 and the second light source 122 are turned on at the same time, and the light spot projected by the first light source 121 through the first light distribution texture surface 1121 and the light spot projected by the second light source 122 through the second light distribution texture surface 1122 are superimposed to form a third light spot. The current of the first light source 121 in the third working state is less than the current in the first working state; the current of the second light source 122 in the third working state is less than the current in the second working state. Among them, the illumination of the third light spot is greater than the illumination of the first light spot, and less than the illumination of the second light spot; the viewing angle range of the third light spot is less than the viewing angle range of the first light spot, and greater than the illumination range of the second light spot.

[0075] In a specific embodiment, Figure 5 As shown, when the first light source 121 and the second light source 122 are turned on, a light spot that meets the fill light requirement of the main camera can be merged to meet the central illumination of more than 70 lux. Figure 8 As shown in the figure, after superposition, an A5 light spot is formed, which fills the fill light area of ​​560mm*746mm (diagonal length is 50° angle range, black frame area). Therefore, the A5 light spot meets the fill light requirements of the main camera.

[0076] The present application discloses a fill light strategy for the fill light 100, as described in Table 3 below.

[0077] Table 3

[0078] Of course, the currents of the first light source 121 and the second light source 122 may be flexibly set according to different camera types, which is not limited herein.

[0079] The electronic device disclosed in the embodiments of the present application may be a smart phone, a tablet computer, an e-book reader, a wearable device (such as a smart watch), an electronic game console, or the like. The embodiments of the present application do not limit the specific types of electronic devices.

[0080] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A fill light, characterized in that: include: A light distribution component, wherein the light distribution component has a light emitting surface and a light incident surface disposed opposite to each other, and the light incident surface includes a first light distribution texture surface and a second light distribution texture surface disposed in parallel; a first light source and a second light source, wherein the first light source is arranged opposite to the first light distribution texture surface; the second light source is arranged opposite to the second light distribution texture surface, and the light emitted by the first light source and the second light source passes through the light distribution texture surface corresponding thereto and then is emitted from the light emitting surface; Among them, the texture structures on the first light distribution texture surface and the second light distribution texture surface are different, and / or the distances between the first light source and the second light source and their corresponding light distribution texture surfaces are different, so that the illumination and viewing angle range of the light spots projected by the first light source and the second light source after passing through the corresponding light distribution texture surfaces are different.

2. The fill light according to claim 1, characterized in that: The first light distribution texture surface is rotationally symmetrical about the central optical axis of the first light source; the second light distribution texture surface is rotationally symmetrical about the central optical axis of the second light source; the first light distribution texture surface and the second light distribution texture surface both include a first light incident structure and a second light incident structure, the second light incident structure is arranged around the first light incident structure, the first light incident structure is an arc-shaped convex surface, and the second light incident structure includes a plurality of annular teeth, and the plurality of annular teeth are continuously arranged in a direction away from the first light incident structure; The first light incident structure on the first light distribution texture surface is different from the first light distribution texture surface and the second light distribution texture surface, and / or the second light incident structure on the first light distribution texture surface is different from the second light distribution texture surface.

3. The fill light according to claim 2, characterized in that: At least one of the tooth width, tooth height and swing angle of the annular teeth on the first light distribution texture surface and the second light distribution texture surface is different.

4. The fill light according to claim 3, characterized in that: The first light incident structure on the first light distribution texture surface and the second light distribution texture surface is the same; the tooth width and tooth height of the annular teeth on the first light distribution texture surface are the same as the tooth width and tooth height of the annular teeth on the second light distribution texture surface, and the swing angle of the annular teeth on the first light distribution texture surface is greater than the swing angle of the annular teeth on the second light distribution texture surface.

5. The fill light according to claim 3, characterized in that: A diameter of an outline of an orthographic projection of the first light incident structure on the first light distribution texture surface is smaller than a diameter of an outline of an orthographic projection of the first light incident structure on the second light distribution texture surface; Along the radial direction of the second light distribution texture surface, the distance between the tooth tops of the annular teeth of the second light distribution texture surface and the light emitting surface gradually increases.

6. The fill light according to claim 5, characterized in that: The tooth width and tooth height of any one of the annular teeth on the second light distribution texture surface are greater than the tooth width and tooth height of any one of the annular teeth on the first light distribution texture surface.

7. The fill light according to claim 6, characterized in that: The tooth width, tooth height and swing angle between any adjacent annular teeth on the second light distribution texture surface are different.

8. The fill light according to claim 1, characterized in that: The light incident surface further includes a sensor photosensitive area, and the sensor photosensitive area is located between the first light distribution texture surface and the second light distribution texture surface; the fill light further includes a spectrum sensor, and the spectrum sensor is arranged opposite to the sensor photosensitive area.

9. The fill light according to claim 8, characterized in that: The sensor photosensitive area is provided with a light control texture, and a separation area is provided at the joint of the sensor photosensitive area and the adjacent light distribution texture surface, and the separation area is used to separate the light control texture on the sensor photosensitive area from the texture structure on the adjacent light distribution texture surface.

10. The fill light according to claim 9, characterized in that: A first area is provided at the edge of the sensor photosensitive area, and a second area is provided at the edge of the light distribution texture surface adjacent to the sensor photosensitive area. The first area and the second area are spliced ​​to form the separation area, and the first area and the second area are symmetrically arranged with respect to the splicing edge line of the sensor photosensitive area and the light distribution texture surface adjacent to the sensor photosensitive area.

11. An electronic device, characterized in that: A device comprising a housing, a circuit board, a camera module and a fill light according to any one of claims 1 to 10, wherein the camera module and the circuit board are both arranged on the housing, the light distribution component is arranged on the housing, and the first light source and the second light source are both arranged on the circuit board; The camera module includes a first camera and a second camera, wherein the first camera and the second camera are different cameras; when the first camera is in a fill light state, the first light source is turned on; When the second camera is in a fill light state, the second light source is turned on.

12. The electronic device according to claim 11, characterized in that: The first camera is a wide-angle camera, the second camera is a main camera, and the viewing angle range generated by the first light source through the first light distribution texture surface is greater than the viewing angle range generated by the second light source through the second light distribution texture surface.

13. The electronic device according to claim 11, characterized in that: The camera module includes a third camera. When the third camera is in a fill light state, the first light source and the second light source are turned on at the same time, and the viewing angle range generated by the first light source through the first light distribution texture surface overlaps with the viewing angle range generated by the second light source through the second light distribution texture surface.

Images